package com.example.hello.service.impl;

import com.example.hello.model.Drink;
import com.example.hello.model.Order;
import com.example.hello.repository.DrinkRepository;
import com.example.hello.repository.OrderRepository;
import com.example.hello.service.IDrinkService;
import com.example.hello.service.IOrderService;
import org.joda.money.CurrencyUnit;
import org.joda.money.Money;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Example;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.util.List;

@Service
public class OrderJpaService implements IOrderService {
    @Autowired
    private DrinkRepository drinkRepository;
    @Autowired
    private OrderRepository orderRepository;
    @Override
    public void addNewOrder(Order order, List<Integer> items) {
        order.setState(0);
        List<Drink> drinks = drinkRepository.findAllById(items);
        order.setItems(drinks);
//        BigDecimal sum= BigDecimal.ZERO;
//        for (Drink drink:drinks) {
//            sum=sum.add(drink.getPrice().getAmount());
//        }
        BigDecimal priceNum=drinks.stream()
                .map(drink -> drink.getPrice().getAmount())
                .reduce(BigDecimal.ZERO,(p1,p2)->p1.add(p2));
        order.setPrice(Money.of(CurrencyUnit.of("CNY"), priceNum));
        orderRepository.save(order);
    }

    @Override
    public List<Order> getOrderByCustomer(String customer) {
        Order order= new Order();
        order.setCustomer(customer);
        order.setState(0);
        Example<Order> example=Example.of(order);
        return orderRepository.findAll(example);
    }


}
